Email address of the service account. If not specified, the default
Compute Engine service account for the project will be used. If instance
template is being used, the service account has to be specified in the
instance template and it has to match the email field here.
Email address of the service account. If not specified, the default
Compute Engine service account for the project will be used. If instance
template is being used, the service account has to be specified in the
instance template and it has to match the email field here.